Pressure roller for biomass briquetting machine and machining method for pressure roller

Abstract

The invention provides a pressure roller, in particular to a pressure roller for a biomass briquetting machine. A grinding ring is arranged on a pressure roller body. A plurality of antiskid grooves are distributed on the grinding surface of the grinding ring. A machining method for the pressure roller comprises the following steps of: performing normalizing thermal treatment on a blank to change the cutting performance of the blank and form a workpiece; performing rough machining, performing high-frequency quenching and high-temperature tempering on the workpiece to make the hardness of the workpiece reach HRC40 to 46; performing finish machining on the workpiece, and surfacing a starved area in the grinding ring by using a surface electrode; performing finish machining on the grinding ring, reserving the antiskid grooves with widths of 2 to 5mm and depths of 2 to 4mm on the grinding surface of the front end of the grinding ring; and cyaniding the workpiece to make the hardness of the workpiece reach HRC56 to 62. The hardness of the pressure roller can be greatly improved, and equipment shutdown caused by excessive materials or slip of the surface of the pressure roller can be prevented.

Description

technical field [0001] The invention relates to a pressing wheel, in particular to a pressing wheel used in a biomass molding device and a processing method thereof. Background technique [0002] At present, the processing of existing pressure wheels is to increase the hardness and wear resistance of ordinary steel through simple quenching and tempering. The hardness of the pressure wheels made by the above processing method can only reach HRC40~46. Due to the small hardness coefficient and low wear resistance of this type of pressure roller, it is easy to cause damage during use and cannot be used in large quantities with equipment. It also increases the workload required for workers to replace the pressure roller and the subsequent consumption costs. In addition, because the working surfaces of the pressure rollers are all smooth structures, when there is too much material or the pressure rollers slip, unnecessary equipment shutdown will be caused, thereby reducing the wor...

AI Technical Summary

Problems solved by technology

Due to the small hardness coefficient and low wear resistance of this type of pressure roller, it is easy to cause damage during use, and cannot be used in large quantities with equipment. It also increases the workload required for workers to replace the pressure roller and the subsequent consumption costs.

In addition, since the working surfaces of the pressure rollers are all smooth structures, when there is too much material or the pressure rollers slip, it will cause unnecessary equipment shutdown, thereby reducing the working efficiency of the equipment

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